Let's fetch this week's upstream changes.
$ cd ~/cs40/examples $ git fetch upstream $ git merge -X ours upstream/master
After this step, you will need to manually edit the top level
CMakeLists.txt to add the new subdirectories.
$ tail ~/cs40/examples/CMakeLists.txt if(CMAKE_CUDA_COMPILER) add_subdirectory(w07-cuda-pt1) add_subdirectory(w07-cuda-pt2) add_subdirectory(w08-cuda-patterns) endif() add_subdirectory(w09-particles) add_subdirectory(w10-noise) #add the line below add_subdirectory(w11-noise2)
No symlink this week. We're making our own textures!
If everything went well, you should be able to go into your
build directory and run
make -j8 to compile the week 10 examples.
cd build make -j8 cd w11-noise2 ./clouds
This application is similar to your week1 lab in that it edits images. In the
MyImageBox constructor, you can set the number of images you want to create (currently 1), and it will call
makeImage(z), similar to our noise demos from last week. A
QTimer object is set up to repeatedly trigger a
step() event which cycles through the images.
The image is currently set in
cloudColor to be a white to blue gradient using
smoothstep. It has some color, but it is kind of bland. Let's improve this with noise.